Annual report [Section 13 and 15(d), not S-K Item 405]

STOCK-BASED COMPENSATION - Total Stock-Based Compensation Expense (Details)

v3.25.4
STOCK-BASED COMPENSATION - Total Stock-Based Compensation Expense (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Stock-based compensation expense, before income taxes $ 78.4 $ 81.6 $ 71.8
Cost of services      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Stock-based compensation expense, before income taxes 13.3 13.4 14.5
Selling, general and administrative expenses      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Stock-based compensation expense, before income taxes $ 65.1 $ 68.2 $ 57.3